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An external universal battery charging apparatus which can include external universal battery charger circuitry having at least one universal battery charger circuitry input and at least one universal battery charger circuitry output. The universal battery charger circuitry output can include at lea

An external universal battery charging apparatus which can include external universal battery charger circuitry having at least one universal battery charger circuitry input and at least one universal battery charger circuitry output. The universal battery charger circuitry output can include at least one battery charger output, which itself can include at least one universal battery connector and at least one universal battery charger cable. The at least one universal battery charger circuitry output can include at least one adapter pass through output, which itself can include at least one connector adapted to operably connect to an electronic device. The external universal battery charger circuitry can include at least one battery recognition and parameter adjustment circuit, battery current parameter adjustment circuit, charged voltage parameter adjustment circuit, and maximum power draw parameter adjustment circuit. The external universal battery charging apparatus can include a maximum rated power supply determination unit. The method can include detecting a battery, identifying characteristics of the battery, and adjusting at least one parameter in universal battery charger circuitry in response to the characteristics of the battery such that optimum battery charging is achieved.

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[ What is claimed is:] [1.] An external universal battery charging apparatus comprising:external universal battery charger circuitry having at least one universal battery charger circuitry input and at least one universal battery charger circuitry output; andsaid at least one universal battery charg

[ What is claimed is:] [1.] An external universal battery charging apparatus comprising:external universal battery charger circuitry having at least one universal battery charger circuitry input and at least one universal battery charger circuitry output; andsaid at least one universal battery charger circuitry output comprising at least one battery charger output and at least one power line output, said external universal battery charger circuitry having continuously adaptive power draw circuitry structured such that an amount of power rendered available to the at least one battery charger output is substantially equal to a maximum source power draw, specified by a maximum-source-power-draw control line of a battery recognition and parameter adjustment circuit, less power sensed substantially simultaneously drawn by the at least one power line output.